The purpose of this study was to produce. characterize and apply white and black charcoal for wastewater treatment application. Characterization of charcoals. the results confirmed that white charcoal had higher thermal stability and carbon content than black charcoal. https://www.roneverhart.com/2003-2005-HONDA-ACCORD-2-4L-4-Cylinder-Engine-Upper-Intake-Manifold-OEM/